retro fitting a 2020 motor to a 2019 frame

[games133]

hi im looking for pics of bike with a 2020 motor fitted ideally trek but open to all. im looking for see if a new 2020 motor could be fitted to my trek powerfly 7. from what ive seen and found on websites it dose look possible with a bracket to be made to hold the motor.
at this moment im just looking at it see if it going be worthwhile doing